Hypotenuse = sqrt(4^2+(-3)^2)= sqrt(16+9) = sqrt(25) = 5

sin theta = opp/hyp = 4/5

https://gyazo.com/30abf85959462b2fe3536a43d213d5c8

sin Ө = 4/5_____Option B

(-3,4) is quadrant II so sinθ is positive.

sinθ = 4/√((-3)²+4²) = ⅘

B) 4/5